The Combo component is similar to the Select component in that it provides a list of options from which the user can make a selection. In contrast to the Select component, the Combo component displays all options in a virtualized list of items, meaning the combo box can simultaneously show thousands of options, where one or more options can be selected. Additionally, users can create custom item templates, allowing for robust data visualization. The Combo component features case-sensitive filtering, grouping, complex data binding, dynamic addition of values and more.

prefix - Renders content before the input of the combo.

suffix - Renders content after the input of the combo.

header - Renders a container before the list of options of the combo.

footer - Renders a container after the list of options of the combo.

helper-text - Renders content below the input of the combo.

toggle-icon - Renders content inside the suffix container of the combo.

clear-icon - Renders content inside the suffix container of the combo.

value-missing - Renders content when the required validation fails.

custom-error - Renders content when setCustomValidity(message) is set.

invalid - Renders content when the component is in invalid state (validity.valid = false).

label - The encapsulated text label of the combo.

input - The main input field of the combo.

native-input - The native input of the main input field of the combo.

prefix - The prefix wrapper of the combo.

suffix - The suffix wrapper of the combo.

toggle-icon - The toggle icon wrapper of the combo.

clear-icon - The clear icon wrapper of the combo.

case-icon - The case icon wrapper of the combo.

helper-text - The helper text wrapper of the combo.

search-input - The search input field of the combo.

list-wrapper - The list of options wrapper of the combo.

list - The list of options box of the combo.

item - Represents each item in the list of options of the combo.

group-header - Represents each header in the list of options of the combo.

active - Appended to the item parts list when the item is active of the combo.

selected - Appended to the item parts list when the item is selected of the combo.

checkbox - Represents each checkbox of each list item of the combo.

checkbox-indicator - Represents the checkbox indicator of each list item of the combo.

checked - Appended to checkbox parts list when checkbox is checked in the combo.

header - The container holding the header content of the combo.

footer - The container holding the footer content of the combo.

empty - The container holding the empty content of the combo.

Callable

  • Returns ReactNode

Accessors

selection: T[]

Returns the current selection as an array of objects as provided in the data source.

Events

onChange: (args: CustomEvent<IgrComboChangeEventArgsDetail<any>>) => void

Emitted when the control's selection has changed.

Type declaration

onClosed: (args: CustomEvent<void>) => void

Emitted after the list of options is closed.

Type declaration

onClosing: (args: CustomEvent<void>) => void

Emitter just before the list of options is closed.

Type declaration

onOpened: (args: CustomEvent<void>) => void

Emitted after the list of options is opened.

Type declaration

onOpening: (args: CustomEvent<void>) => void

Emitted just before the list of options is opened.

Type declaration

Methods

  • Removes focus from the component.

    Returns void

  • Deselects option(s) in the list by either reference or valueKey. If not argument is provided all items will be deselected.

    const combo<IgcComboComponent<T>> = document.querySelector('igc-combo');

    // Deselect one item at a time by reference when valueKey is not specified.
    combo.deselect(combo.data[0]);

    // Deselect multiple items at a time by reference when valueKey is not specified.
    combo.deselect([combo.data[0], combo.data[1]]);

    // Deselect one item at a time when valueKey is specified.
    combo.deselect('BG01');

    // Deselect multiple items at a time when valueKey is specified.
    combo.deselect(['BG01', 'BG02']);

    Parameters

    • items: Item<T> | Item<T>[]

      One or more items to be deselected. Multiple items should be passed as an array. When valueKey is specified, the corresponding value should be used in place of the item reference.

    Returns void

  • Sets focus on the component.

    Parameters

    • options: FocusOptions

    Returns void

  • Hides the list of options.

    Returns Promise<boolean>

  • Selects option(s) in the list by either reference or valueKey. If not argument is provided all items will be selected.

    const combo<IgcComboComponent<T>> = document.querySelector('igc-combo');

    // Select one item at a time by reference when valueKey is not specified.
    combo.select(combo.data[0]);

    // Select multiple items at a time by reference when valueKey is not specified.
    combo.select([combo.data[0], combo.data[1]]);

    // Select one item at a time when valueKey is specified.
    combo.select('BG01');

    // Select multiple items at a time when valueKey is specified.
    combo.select(['BG01', 'BG02']);

    Parameters

    • items: Item<T> | Item<T>[]

      One or more items to be selected. Multiple items should be passed as an array. When valueKey is specified, the corresponding value should be used in place of the item reference.

    Returns void

  • Shows the list of options.

    Returns Promise<boolean>

  • Toggles the list of options.

    Returns Promise<boolean>

Properties

autofocus: boolean

The autofocus attribute of the control.

autofocusList: boolean

Focuses the list of options when the menu opens.

caseSensitiveIcon: boolean

Enables the case sensitive search icon in the filtering input.

data: T[]

The data source used to generate the list of options.

disableFiltering: boolean

Disables the filtering of the list of options.

displayKey: keyof T

The key in the data source used to display items in the list.

filteringOptions: FilteringOptions<T>

An object that configures the filtering of the combo.

groupHeaderTemplate: ComboItemTemplate<T>

The template used for the content of each combo group header.

groupKey: keyof T

The key in the data source used to group items in the list.

groupSorting: GroupingDirection

Sorts the items in each group by ascending or descending order.

itemTemplate: ComboItemTemplate<T>

The template used for the content of each combo item.

label: string

The label attribute of the control.

open: boolean

Sets the open state of the component.

outlined: boolean

The outlined attribute of the control.

placeholder: string

The placeholder attribute of the control.

placeholderSearch: string

The placeholder attribute of the search input.

singleSelect: boolean

Enables single selection mode and moves item filtering to the main input.

value: ComboValue<T>[]

Sets the value (selected items). The passed value must be a valid JSON array. If the data source is an array of complex objects, the valueKey attribute must be set. Note that when displayKey is not explicitly set, it will fall back to the value of valueKey.

valueKey: keyof T

The key in the data source used when selecting items.